Lawnmower blade mounting hub



FIG. 1 is a perspective view of a lawnmower blade mounting hub, showing my design;

FIG. 2 is a top plan view of FIG. 1;

FIG. 3 is a bottom plan view of FIG. 1;

FIG. 4 is a right side elevation view of FIG. 1;

FIG. 5 is a left side elevation view of FIG. 1;

FIG. 6 is a front elevational view of FIG. 1; and,

FIG. 7 is a rear elevation view of FIG. 1. 

The ornamental design for a “lawnmower blade mounting hub”, as shown. 